Peace Talks

This turn and next turn, creatures can't attack, and players and permanents can't be the targets of spells or activated abilities.

King Cheetah

Ovinomancer

Sheep

When this creature enters, sacrifice it unless you return three basic lands you control to their owner's hand.
{T}, Return this creature to its owner's hand: Destroy target creature. It can't be regenerated. That creature's controller creates a 0/1 green Sheep creature token.

Dark Privilege

Enchant creature
Enchanted creature gets +1/+1.
Sacrifice a creature: Regenerate enchanted creature.

Necrosavant

{3}{B}{B}, Sacrifice a creature: Return this card from your graveyard to the battlefield. Activate only during your upkeep.

Urborg Mindsucker

{B}, Sacrifice this creature: Target opponent discards a card at random. Activate only as a sorcery.

Vampirism

Enchant creature
When this Aura enters, draw a card at the beginning of the next turn's upkeep.
Enchanted creature gets +1/+1 for each other creature you control.
Other creatures you control get -1/-1.

Wicked Reward

As an additional cost to cast this spell, sacrifice a creature.
Target creature gets +4/+2 until end of turn.

Viashino Sandstalker

Haste (This creature can attack and {T} as soon as it comes under your control.)
At the beginning of the end step, return this creature to its owner's hand. (Return it only if it's on the battlefield.)

Bull Elephant

When this creature enters, sacrifice it unless you return two Forests you control to their owner's hand.

Multiverse Gift Box